Title page for etd-0727110-114049

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The purpose of this study is combining iron nanomaterials with textile polymer materials for developing high value added EMI composites.Because of special magnetic property and electrical conductivity, magnetic nanomaterials have attracted much attention for applying in biomedicine and magnetic shielding in recent years. In this study, different morphologies and shapes of synthesized iron nanomaterials are combined with polyethylene terephthalate (PET) by mixing and hot pressing or direct mixing during polymerization of PET. Moreover, the nanocomposites with different volume ratios of iron nanomaterials to polyethylene terephthalate are synthesized to investigate their structural and EMI properties. Because of the addition of iron nanomaterials, the magnetic and magnetic shielding properties of traditional textile materials are changed. After smashing, mixing, reeling off raw fibers, spinning and weaving, the nanocomposites can be fabricated as magnetic or magnetic shielding cloths which could increase their value in applications of national defense, clothing, decoration, and textile products.